backend write error: 11 on POST

[Václav Bílek]

Hello

does anybody know what does

 FetchError   c backend write error: 11

means?

We are hitting this error on some POST requests, on backend we see only
part of POST data the rest is cut off.





varnish 2.0.5
debian lenny 64bit

  386 SessionOpen  c xx.xx.xx.xx 4739 0.0.0.0:80
  386 ReqStart     c xx.xx.xx.xx 4739 2008870321
  386 RxRequest    c POST
  386 RxURL        c /index.php?cmd=cms.odds.bookmaker&action=5&itemID=52
  386 RxProtocol   c HTTP/1.1
  386 RxHeader     c Accept: image/gif, image/jpeg, image/pjpeg,
image/pjpeg, application/x-shockwave-flash, application/x-silverlight,
application/vnd.ms-excel, application/vnd.ms-powerpoint,
application/msword, application/x-ms-application, application/x-ms-xbap,
applicatio
  386 RxHeader     c Referer:
http://xxx.xxxxx.com/index.php?cmd=cms.odds.bookmaker&action=4&itemID=52
  386 RxHeader     c Accept-Language: cs
  386 RxHeader     c User-Agent: Mozilla/4.0 (compatible; MSIE 8.0;
Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET
CLR 3.0.4506.2152; .NET CLR 3.5.30729)
  386 RxHeader     c Content-Type: application/x-www-form-urlencoded
  386 RxHeader     c Accept-Encoding: gzip, deflate
  386 RxHeader     c Host: wata.flashscore.com
  386 RxHeader     c Content-Length: 10988
  386 RxHeader     c Connection: Keep-Alive
  386 RxHeader     c Cache-Control: no-cache
  386 RxHeader     c Cookie: cmsSID=b5517812196c0f07c61cf9323cb037c5
  386 RxHeader     c Authorization: Basic cGFydG5lcjpPZmljZTY5
  386 VCL_call     c recv pass
  386 VCL_call     c pass pass
  386 Backend      c 387 default default
  386 FetchError   c backend write error: 11
  386 VCL_call     c error deliver
  386 Length       c 1519
  386 VCL_call     c deliver deliver
  386 TxProtocol   c HTTP/1.1
  386 TxStatus     c 503
  386 TxResponse   c Service Unavailable
  386 TxHeader     c Server: Varnish
  386 TxHeader     c Retry-After: 0
  386 TxHeader     c Content-Length: 1519
  386 TxHeader     c Date: Wed, 28 Apr 2010 09:10:50 GMT
  386 TxHeader     c Age: 1
  386 TxHeader     c Connection: close
  386 ReqEnd       c 2008870321 1272445849.859823942
1272445850.874999046 0.000030756 1.015151501 0.000023603



Vaclav Bilek